Alexander Onischuk made an interesting sacrifice 16.Rxe6.
Because the Bishop on f6 blocks the knight from coming to f6, there was
no graceful way for Black to defend against the threat on h7 after
Qe2-Qe4. In the end, Black managed to simplify to an endgame that was
only slightly better for White. However, he may have been worn out by
Alex's aggressive play, cause he blundered horribly with 39...Nc7??, allowing Alex to win instantly.

Position after 39....Nc7

We shouldn't forget Yury Shulman, who went far in last year's World Cup
and should not be underestimated despite the fact that his rating gave him a tough pairing in round two, Alexei Shirov. In the first game, he drew
with White in a theoretical Grunfeld. Because of the two game match
structure, drawing with White must be seen as a disadvantage for Yury,
but anything can happen tomorrow or in the tiebreak.